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SMA 312.2

Global 企业标准 SMA312.2 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SMA312.2 / SMA 312.2
Category Grade Standard Region/Area Standard Content
Metals SMA 312.2 -- Global

Chemical composition(mass fraction)(wt.%) of the SMA 312.2

Element Min Max Similar

Mechanical Properties of steel grade SMA 312.2

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
841 (≥) 862 (≥) 21 33 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade SMA 312.2

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
42 - -     0.44 -  
128 159 - 34.3 412   -  
419 - 14 34.2   333 143

Heat Treatment of steel grade SMA 312.2

Heat treated : 1739°C - 1653°C

Technological Curves of steel grade SMA 312.2

Cross Reference Table (Equivalent Grade) of SMA 312.2

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